In mutt-1.5.15, and all prior versions that I know of, the pager status line included a "percentage of the message shown" indicator on the far right. The rest of the status line was always truncated so that that indicator was always visible.
With mutt-1.5.16, that behavior has changed. The fixed indicator has been replaced by the "%> -- (%P)" format sequence in 'pager_format'. The problem with this is that the percentage indicator can now be shoved off the right side of the screen by long subjects. Is there a 'pager_format' that will restore the previous behavior, that is, keep this indicator fixed at the right end of the status line while allowing the rest of the status string to "breath" and the screen width to vary? Gary